CAJ | 학술논문

通过在高炉渣中加入不同质量分数的尾矿作为改性剂，研究了改性熔渣的凝固行为和黏度行为.采用 X 射线衍射和偏光显微镜研究了熔渣的矿物组成和显微结构，采用熔体物性测定仪研究了熔渣在1200℃到1475℃的黏度.结果表明：配加尾矿后，熔渣的酸度系数(Mk)达到1.2~1.8时，熔渣凝固后呈现非晶/玻璃质的特征；显微结构除 Mk =1.8以外，均为致密均匀的结构.此外，熔渣成纤适宜的温度区间显著增大，尾矿适宜的配比为16.98%~34.18%.
통과재고로사중가입불동질량분수적미광작위개성제，연구료개성용사적응고행위화점도행위.채용 X 사선연사화편광현미경연구료용사적광물조성화현미결구，채용용체물성측정의연구료용사재1200℃도1475℃적점도.결과표명：배가미광후，용사적산도계수(Mk)체도1.2~1.8시，용사응고후정현비정/파리질적특정；현미결구제 Mk =1.8이외，균위치밀균균적결구.차외，용사성섬괄의적온도구간현저증대，미광괄의적배비위16.98%~34.18%.
Tailings of different mass fractions Were added into the blast furnace slag (BF slag)as the modifier,and the solidification behaviour and viscosity behaviour of the modified molten slag Were studied.Mineral composition and microstructure of the modified molten slag Were analyzed by X-ray diffraction (XRD)and polarizing microscope.The viscosity curves betWeen 1 200 ℃and 1 475 ℃ Were studied by synthetic test instrument for the physical characteristics.The results indicated that When the acidity coefficient (Mk)of the molten slag reaches 1.2 ~1.8 after adding tailings, the solidification structure of the molten slag has mainly an amorphous /vitreous character,and the microstructure is a compact and uniform structure except for Mk =1.8.In addition,the suitable temperature range for melting fabrication is significantly increased.The appropriate mass fraction of tailings is 16.98% ~34.18%.